feat: complete Phase 0 Enterprise IAM

src/db/migrations/postgres/0011_create_applications.sql

@@ -0,0 +1,12 @@
+CREATE TABLE IF NOT EXISTS applications (
+    id          TEXT    PRIMARY KEY NOT NULL,
+    tenant_id   TEXT    NOT NULL REFERENCES tenants(id) ON DELETE RESTRICT,
+    name        TEXT    NOT NULL,
+    slug        TEXT    NOT NULL UNIQUE,
+    enabled     INTEGER NOT NULL DEFAULT 1,
+    created_at  TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now')),
+    updated_at  TEXT    NOT NULL DEFAULT (strftime('%Y-%m-%dT%H:%M:%SZ', 'now'))
+);
+
+CREATE INDEX IF NOT EXISTS idx_applications_tenant ON applications(tenant_id);
+CREATE INDEX IF NOT EXISTS idx_applications_slug   ON applications(slug);